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gsm mobile
相关语句
  gsm移动
     Now,there are4GSM mobile operators in Italy:TIM,Omnitel Vodafone,Wind and Blu,recpectively oc-cu py ing 46.7%,34.4%,15.3%and3.6%of market quo tient .
     目前,意大利共有4家GSM移动运营商:TIM,OmnitelVodafone,Wind和Blu,分别占有市场份额的46.7%、34.4%、15.3%和3.6%。
短句来源
     According to communication standard, analyze test requirements of GSM mobile phone, CDMA mobile phone and base station.
     本文参照部门、通信行业标准,具体分析了GSM移动台的测试指标与要求、CDMA移动台的测试指标与要求,以及基站的测试指标与要求。
短句来源
     Electric Power Automatic Meter Reading System Based on GSM Mobile Network
     基于GSM移动网络的电力自动抄表系统
短句来源
     Radio Network Optimum Scheme In GSM Mobile System
     GSM移动系统无线网络优化方案
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     A Survey of GSM Mobile Network
     GSM移动网络综述
短句来源
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  gsm手机
     A GSM Mobile Testing System Based on GPIB Bus
     基于GPIB总线的GSM手机测试系统
短句来源
     In this paper,a dual -factor authentication protocol based on the SIM card in GSM mobile phone is presented after an analysis of GSM system security and dual -factor authentication. This protocol obtains MAC by performing the cryptographic calculation using the seeds fed in SIM card and GSM system time.
     该文通过对GSM系统安全性的分析,结合双因素认证技术,提出了一种基于GSM手机SIM卡的双因素认证协议,该认证协议使用给SIM卡内植入的种子数与GSM系统时间值进行密码运算,获得消息认证码,使认证服务器可以根据此认证码对用户进行基于SIM卡和种子数的双因素身份认证。
短句来源
     Then taking a GSM mobile—PW10 for example, expatiates the SOB’s design scheme.
     然后以一款GSM手机PW10的主板电路设计为例阐述了移动通讯终端的SOB设计思路及方法。
短句来源
     Introduction to Emission Power and Measurement for 900MHz GSM Mobile Phone
     900MHz频段GSM手机的发射功率及其测试方法概述
短句来源
     The Key Techniques of GSM Mobile Phone Transmitter Designing
     GSM手机发射机设计的关键技术
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  “gsm mobile”译为未确定词的双语例句
     With the development of GSM, mobile communication system is going to the 3rd generation mobile communication system-Universal Mobile Telecommunication System (UMTS).
     随着GSM系统的不断发展,移动通信系统开始向第三代移动通信系统——全球移动通信系统(Universal Mobile Telecommunication System,UMTS)演进。
短句来源
     Application of IC Card Encipher Control Technique in GSM mobile Telephone Communication
     IC卡加密控制技术在GSM移动电话通讯中的应用
短句来源
     It is introduced to program optioned,system constitution and work principle of GPS/GSM mobile units of the monitoring vehicle based on AT89C51,and it is advanced to a detailed design plan and realization methods of hardware composition and software design to mobile units of the monitoring vehicle.
     介绍基于AT89C51单片机的GPS/GSM车辆监控系统移动单元的方案选择、系统构成和工作原理,对监控系统移动单元的硬件组成和软件设计提出设计方案和实现方法。
短句来源
     Quality Control for Repairing of GSM Mobile Phone
     GSM移动电话维修质量的控制
短句来源
     Automatic Calibration Test System of GSM Mobile Phone Base on Virtual Instrument Technology
     基于虚拟仪器技术的GSM移动电话自动校准测试系统
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  gsm mobile
In this paper we present a novel approach to the automatic GSM mobile station location.
      
GSM Mobile Station Location Using Reference Stations and Artificial Neural Networks
      
The General Packet Radio Service extends the existing GSM mobile communications technology by providing packet switching and higher data rates in order to efficiently access IP-based services in the Internet.
      
This paper does not explain all details of the GSM system, but investigates the system in order to establish an experimental setup, which matches the real fields stemming from GSM mobile transmitters.
      
The paper describes a receiver structure for the digital GSM mobile radio which is suitable for implementation using a DSP processor.
      
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GSM is a standard for developing digital cellular mobile telephone in Europe which hasbeen extended to the areas such as Asia, Africa, South America, mid-east and Australia, It is fore-casted by the experts concerned that the GSM mobile telephone subscribers would be 19 millions andeven 23 millions in Europe by 2000. The paper mainly describes the development of GSM in theworld and shows the running state of some areas with lists.

GSM是欧洲开发的数字蜂窝移动电话标准。现已扩展到欧洲以外的亚洲、非洲、南美、中东以及澳大利亚等地区。有关专家预测,到2000年,欧洲的GSM移动电话用户将达到190O万甚至可达2300万。其发展前景甚为乐观。本文主要介绍当前GSM在世界各地的发展,并以表格的形式展示各地区的经营现状。

This paper presents an emergent alarming system oil the basis of DGPS/GSM. This system comprises: (1) DGPS reference station; (2) mobile user system; (3) mobile telecommunication management system; and (4) emergent alarming monitor center system. With DGPS,GSM mobile communication and electrical map,it can report accident scenes to monitor center in real-time when user is in emergency. Also, it can display current users'positions on the screen so that watcher can see it vividly in the...

This paper presents an emergent alarming system oil the basis of DGPS/GSM. This system comprises: (1) DGPS reference station; (2) mobile user system; (3) mobile telecommunication management system; and (4) emergent alarming monitor center system. With DGPS,GSM mobile communication and electrical map,it can report accident scenes to monitor center in real-time when user is in emergency. Also, it can display current users'positions on the screen so that watcher can see it vividly in the monitor center.

本文介绍一种基于DGPS/GSM的紧急报警系统。该系统包括:DGPS基准站系统、移动用户系统、移动电信管理系统和紧急报警监控中心系统。它采用了当前的DGPS(InfferentialGlobalPositioningSystem)技术、泛欧GSM(GlobalSystemforMobilecommunication)数字式蜂窝移动通信技术和电子地图等技术,能在移动用户发生紧急情况时实时向监控中心报警,也可以将运行的轨迹显示子监控中心的屏幕上,使监控人员能形象而又直观地观察各移动用户的当前位置和运行状况.

Channel equalization is essential in the Pan-European GSM mobile communication system. The Maximum Likelihood Sequence Estimation (MLSE) using the Viterbi Algorithm (VA) is commonly recommended for the equalization, which can only accommodate the channels with limited time delay spread. This paper presents a partially connected neural equalizer for the GSM system, in which the complexity is linearly proportional to the time delay spread. For the purpose of effectively eliminating the performance...

Channel equalization is essential in the Pan-European GSM mobile communication system. The Maximum Likelihood Sequence Estimation (MLSE) using the Viterbi Algorithm (VA) is commonly recommended for the equalization, which can only accommodate the channels with limited time delay spread. This paper presents a partially connected neural equalizer for the GSM system, in which the complexity is linearly proportional to the time delay spread. For the purpose of effectively eliminating the performance degradation due to existence Of local minima, the Mean-Field-Annealing (MFA) technique is introduced. The present approach is well suited for digital or analog VLSI implementations and can converge in a very short time period. Computation simulations show that our approach can provide performance improvement over 16-state and 32-state VA's which are usually suggested for practical applications.

在泛欧GSM移动通信系统中,由于存在码间干扰,必须采用信道均衡技术。常用的最大似然序列估计(MLSE)均衡器采用维特比算法(VA),它只能用于具有较小时延扩展的信道。本文给出了一种适用于GSM系统的部分连接神经网络均衡器,其复杂度与信道的时延扩展成正比,特别适用于具有较大时延扩展的恶劣信道。为了消除神经网络局部极小点引起的性能恶化,我们采用了均场退火技术。本文提出的均衡器既适于用模拟集成电路实现,又适于用数字集成电路实现。计算机仿真表明本文的方法具有比最常用的16状态和32状态VA更好的性能。

 
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